WarframeAlchemyLab ES
Melee Fortification

Farming plan

Melee Fortification

Arsenal: Melee Fortification
Dropped by
Mocking Whisper Uncommon 12.5 %
Scathing Whisper Uncommon 12.5 %
The Fragmented Suzerain Uncommon 12.5 %
Chance of getting it by number of runs
0% 25% 50% 75% 100% 5 10 15 20 25 6 runs · 50% 6 runs · 50% 18 runs · 90% 18 runs · 90%

Each run has a 12.5% chance. The curve is 1−(1−p)ⁿ: there is never a guarantee, only growing confidence.